Removed the dependency to set the UNITY_PORT environment on the MCP configuration, now all can be set in the Unity Editor or in the terminal

Author: CoderGamester

.gitignore

@@ -116,3 +116,5 @@ GvhProjectSettings.xml
 .codeiumignore
 Server/log.txt
 Server/log.txt.meta
+log.txt
+log.txt.meta

Editor/Tools/RunTestsTool.cs

@@ -161,7 +161,7 @@ public void RunFinished(ITestResultAdaptor result)
             // Set the test run completion result
             try
             {
-                _testRunCompletionSource.SetResult(new JObject
+                _testRunCompletionSource?.SetResult(new JObject
                 {
                     ["success"] = true,
                     ["type"] = "text",
@@ -171,7 +171,7 @@ public void RunFinished(ITestResultAdaptor result)
             catch (Exception ex)
             {
                 Debug.LogError($"[MCP Unity] Failed to set test results: {ex.Message}");
-                _testRunCompletionSource.TrySetException(ex);
+                _testRunCompletionSource?.TrySetException(ex);
             }
             finally
             {

Editor/UnityBridge/McpUnityEditorWindow.cs

@@ -99,6 +99,9 @@ private void DrawServerTab()
                 settings.Port = newPort;
                 settings.SaveSettings();
                 mcpUnityServer.StopServer();
+                EditorUtility.DisplayDialog("Restart MCP Client",
+                    "Please restart your MCP Client (Windsurf, Cursor, Calude Destktop, etc.) to apply the changes.",
+                    "OK");
             }
             EditorGUILayout.EndHorizontal();
 

Editor/UnityBridge/McpUnitySettings.cs

@@ -86,7 +86,7 @@ public void SaveSettings()
 
                 // Set environment variable PORT for the Node.js process
                 // Note: This will only affect processes started after this point
-                System.Environment.SetEnvironmentVariable("UNITY_PORT", Port.ToString(), System.EnvironmentVariableTarget.Process);
+                System.Environment.SetEnvironmentVariable("UNITY_PORT", Port.ToString(), System.EnvironmentVariableTarget.User);
             }
             catch (Exception ex)
             {

Editor/Utils/McpConfigUtils.cs

@@ -26,12 +26,7 @@ public static string GenerateMcpConfigJson(bool useTabsIndentation)
                         { "mcp-unity", new Dictionary<string, object>
                             {
                                 { "command", "node" },
-                                { "args", new[] { Path.Combine(GetServerPath(), "build", "index.js") } },
-                                { "env", new Dictionary<string, string>
-                                    {
-                                        { "UNITY_PORT", McpUnitySettings.Instance.Port.ToString() }
-                                    }
-                                }
+                                { "args", new[] { Path.Combine(GetServerPath(), "build", "index.js") } }
                             }
                         }
                     }

README-ja.md

@@ -173,34 +173,23 @@ MCP Unityは、Unityの`Library/PackedCache`フォルダーをワークスペー
 </details>
 
 <details>
-<summary><span style="font-size: 1.1em; font-weight: bold;">オプション2: Smithery経由で設定</span></summary>
-
-[Smithery](https://smithery.ai/server/@CoderGamester/mcp-unity)経由でMCP Unityをインストール：
-
-```
-現在利用不可
-```
-</details>
-
-<details>
-<summary><span style="font-size: 1.1em; font-weight: bold;">オプション3: 手動設定</span></summary>
+<summary><span style="font-size: 1.1em; font-weight: bold;">オプション2: 手動設定</span></summary>
 
 AIクライアントのMCP設定ファイル（例：Claude Desktopのclaude_desktop_config.json）を開き、以下のテキストをコピー：
 
 > `ABSOLUTE/PATH/TO`をMCP Unityインストールの絶対パスに置き換えるか、UnityエディターMCPサーバーウィンドウ（Tools > MCP Unity > Server Window）からテキストをコピー
 
 ```json
 {
-   "mcpServers": {
-   "mcp-unity": {
+  "mcpServers": {
+    "mcp-unity": {
       "command": "node",
       "args": [
-         "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
-      ],
-      "env": {
-         "UNITY_PORT": "8090"
-      }
-   }
+        "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
+      ]
+    }
+  }
+}
 ```
 
 </details>

README-ja.md.meta

@@ -173,17 +173,7 @@ Installing this MCP Unity Server is a multi-step process:
 </details>
 
 <details>
-<summary><span style="font-size: 1.1em; font-weight: bold;">Option 2: Configure via Smithery</span></summary>
-
-To install MCP Unity via [Smithery](https://smithery.ai/server/@CoderGamester/mcp-unity):
-
-```
-Currently not available
-```
-</details>
-
-<details>
-<summary><span style="font-size: 1.1em; font-weight: bold;">Option 3: Configure Manually</span></summary>
+<summary><span style="font-size: 1.1em; font-weight: bold;">Option 2: Configure Manually</span></summary>
 
 Open the MCP configuration file of your AI client (e.g. claude_desktop_config.json in Claude Desktop) and copy the following text:
 
@@ -192,15 +182,12 @@ Open the MCP configuration file of your AI client (e.g. claude_desktop_config.js
 ```json
 {
    "mcpServers": {
-   "mcp-unity": {
-      "command": "node",
-      "args": [
-         "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
-      ],
-      "env": {
-         "UNITY_PORT": "8090"
-      }
-   }
+       "mcp-unity": {
+          "command": "node",
+          "args": [
+             "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
+          ]
+       }
    }
 }
 ```
@@ -285,11 +272,11 @@ To build the server, open a terminal and:
 Debug the server with [@modelcontextprotocol/inspector](https://github.com/modelcontextprotocol/inspector):
    - Powershell
    ```powershell
-   $env:UNITY_PORT=8090; npx @modelcontextprotocol/inspector node Server/build/index.js
+   npx @modelcontextprotocol/inspector node Server/build/index.js
    ```
    - Command Prompt/Terminal
    ```cmd
-   set UNITY_PORT=8090 && npx @modelcontextprotocol/inspector node Server/build/index.js
+   npx @modelcontextprotocol/inspector node Server/build/index.js
    ```
 
 Don't forget to shutdown the server with `Ctrl + C` before closing the terminal or debugging it with the [MCP Inspector](https://github.com/modelcontextprotocol/inspector).

README.md

@@ -174,16 +174,6 @@ MCP Unity 通过将 Unity `Library/PackedCache` 文件夹添加到您的工作
 
 </details>
 
-<details>
-<summary><span style="font-size: 1.1em; font-weight: bold;">选项 2: 通过 Smithery 配置</span></summary>
-
-要通过 [Smithery](https://smithery.ai/server/@CoderGamester/mcp-unity) 安装 MCP Unity：
-
-```
-当前不可用
-```
-</details>
-
 <details>
 <summary><span style="font-size: 1.1em; font-weight: bold;">选项 3: 手动配置</span></summary>
 
@@ -193,16 +183,15 @@ MCP Unity 通过将 Unity `Library/PackedCache` 文件夹添加到您的工作
 
 ```json
 {
-   "mcpServers": {
-   "mcp-unity": {
+  "mcpServers": {
+    "mcp-unity": {
       "command": "node",
       "args": [
-         "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
-      ],
-      "env": {
-         "UNITY_PORT": "8090"
-      }
-   }
+        "ABSOLUTE/PATH/TO/mcp-unity/Server/build/index.js"
+      ]
+    }
+  }
+}
 ```
 
 </details>